Flange type anti-explosion electric heater

Abstract

The utility model discloses a flange type explosion-proof electric heater which comprises a heater body and an explosion-proof mechanism, the outer wall of the heater body is coated with an anti-corrosion coating, the two ends of the outer wall of the heater body are both provided with connecting bases, the top end of the heater body is provided with a machine cover, and the inner wall of the machine cover is provided with a fixing rod. A connecting flange is welded to the outer side of the bottom end of the heater body, a connecting hole is formed in the inner wall of the connecting flange, a heating pipe is installed at the bottom end of the heater body, and a pipe clamp is installed on the outer wall of the heating pipe. According to the flange type anti-explosion electric heater, through the arranged anti-explosion mechanism, when the electric heater breaks down and explodes, an anti-explosion cover in the anti-explosion mechanism can prevent heater fragments generated in the explosion process from splashing outwards, personal safety is guaranteed, meanwhile, loss can be reduced, and meanwhile when the flange type anti-explosion electric heater is used, the anti-explosion mechanism can be used for preventing the electric heater from being damaged. And the liquid heating efficiency is not affected by the design of the leakage holes in the anti-explosion cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange type electric heater related technical field, concretely is flange type explosion -proof electric heater. BACKGROUND

[0002] Flange type electric heater is by many branch heating pipe welding on flange concentrated heating, mainly used in open type, closed type solution tank and circulating system heating, has following several advantages: surface power is big, makes air heating surface load's 2~4 times, high density, compact structure, because integral short and dense, therefore stability is good, installation does not need support, combination mostly adopts argon arc welding mode and makes electric heating pipe on flange connection, also can utilize the form of fastening device, namely each electric heating pipe on welding by fastener, then with flange cover adopts nut locking, pipe on fastener adopts argon arc welding, never leaks, fastener sealing place adopts scientific technology, single branch replaces extremely convenient, greatly saves the maintenance cost later, therefore flange type explosion -proof electric heater is urgently needed.

[0003] The flange type electric heater currently in use has poor explosion-proof performance, and when the electric heater explodes due to a fault, there is no measure to prevent the explosion caused by the fault, and the electric heater is inconvenient to disassemble, repair and maintain. UTILITY MODEL CONTENTS

[0004] The utility model discloses a flange type explosion -proof electric heater, to solve the problem of the flange type electric heater currently in use, poor explosion-proof performance, when the electric heater explodes due to a fault, there is no measure to prevent the explosion caused by the fault, and the electric heater is inconvenient to disassemble, repair and maintain.

[0005] To achieve the above object, the utility model provides the following technical scheme: a flange type explosion -proof electric heater, including heater body and explosion -proof mechanism, the outer wall of heater body is coated with anticorrosion coating, and the outer wall of heater body is provided with connecting seat at both ends, the top of heater body is provided with machine cover, and the inner wall of machine cover is installed with fixed rod, the bottom outside of heater body is welded with connecting flange, and the inner wall of connecting flange is provided with connecting hole, the bottom of heater body is installed with heating pipe, and the outer wall of heating pipe is installed with pipe clamp, the explosion -proof mechanism is installed at the bottom of connecting flange, the explosion -proof mechanism includes fixed ring, explosion -proof cover and limit rod, the fixed ring is installed at the bottom of connecting flange, the bottom of fixed ring is welded with explosion -proof cover, and the top of fixed ring is installed with limit rod on both sides.

[0006] Preferably, the coating material of the anticorrosion coating is epoxy resin paint.

[0007] Preferably, the machine cover is screwed with the heater body through a fixing rod, and the outer wall of the fixing rod and the inner wall of the heater body are both provided in a threaded manner.

[0008] Preferably, the connecting holes are equidistantly distributed around the surface of the connecting flange, and the diameters of the connecting holes are the same.

[0009] Preferably, the explosion-proof cover is screwed with the connecting flange through a limiting rod, and the outer wall of the limiting rod and the inner wall of the connecting flange are both provided in a threaded manner.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1、The flange type explosion-proof electric heater, through the explosion-proof mechanism, when the electric heater explodes due to failure, the explosion-proof cover in the explosion-proof mechanism can block the splashing of the heater fragments, guarantees the personal safety, reduces the loss, and does not affect the heating efficiency of the liquid through the leakage hole of the explosion-proof cover.

[0012] 2、The flange type explosion-proof electric heater, through the machine cover, the fixing rod, the connecting flange and the connecting hole, when the heater body is inserted into the liquid tank, the connecting flange is fixed with the liquid tank through the screw inserted into the connecting hole, the boiling liquid can be prevented from splashing out of the liquid tank, the electric heater is convenient to maintain and overhaul, and the machine cover is convenient to disassemble through the fixing rod. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view of the utility model;

[0014] Fig. 2 It is a top view of the utility model;

[0015] Fig. 3 It is a top view of the explosion-proof mechanism of the utility model.

[0016] In the drawing: 1, heater body; 2, corrosion-resistant coating; 3, connecting seat; 4, machine cover; 5, fixing rod; 6, connecting flange; 7, connecting hole; 8, heating pipe; 9, pipe clamp; 10, explosion-proof mechanism; 1001, fixing ring; 1002, explosion-proof cover; 1003, limiting rod. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: flange type explosion -proof electric heater, including heater body 1 and explosion -proof mechanism 10, the outer wall of heater body 1 is coated with anticorrosive coating 2, and the coating material of anticorrosive coating 2 is epoxy resin paint, and the both ends of the outer wall of heater body 1 are provided with connecting seat 3, the top of heater body 1 is provided with machine cover 4, and the inner wall of machine cover 4 is installed with fixed rod 5, and machine cover 4 is connected with heater body 1 through fixed rod 5, and the outer wall of fixed rod 5 and the inner wall of heater body 1 are all screw thread shape setting, and the bottom outside of heater body 1 is welded with connecting flange 6, and the inner wall of connecting flange 6 is provided with connecting hole 7, and connecting hole 7 is distributed with equal interval around the surface of connecting flange 6, and the aperture of each connecting hole 7 is same, through the machine cover 4, fixed rod 5, connecting flange 6 and connecting hole 7, so that the heating tube 8 of the bottom of heater body 1 is inserted into liquid tank, and then the connecting flange 6 is fixed with liquid tank by screw insertion connecting hole 7, which can avoid the boiling liquid from spilling out of the liquid tank, and is convenient to use, and the machine cover 4 can be conveniently disassembled through the fixed rod 5, so as to facilitate the maintenance and overhaul of the electric heater.

[0019] The bottom of heater body 1 is provided with heating tube 8, and the outer wall of heating tube 8 is provided with pipe clamp 9, and explosion -proof mechanism 10 is installed at the bottom of connecting flange 6, and explosion -proof mechanism 10 includes fixed ring 1001, explosion -proof cover 1002 and limiting rod 1003, fixed ring 1001 is installed at the bottom of connecting flange 6, and the bottom of fixed ring 1001 is welded with explosion -proof cover 1002, and the both sides of the top of fixed ring 1001 are installed with limiting rod 1003, and explosion -proof cover 1002 is connected with connecting flange 6 through limiting rod 1003, and the outer wall of limiting rod 1003 and the inner wall of connecting flange 6 are all screw thread shape setting, through the setting of explosion -proof mechanism 10, so that when the electric heater explodes due to failure, the explosion -proof cover 1002 in explosion -proof mechanism 10 can block the heater fragments generated by explosion from splashing outward, which can guarantee personal safety and reduce losses, and the leakage hole design on explosion -proof cover 1002 will not affect the heating efficiency of the liquid when in use.

[0020] Working principle: during installation, firstly, the heating pipe 8 at the bottom end of the heater body 1 is inserted into the liquid tank, then the connecting flange 6 is fixed with the liquid tank after the screw is inserted into the connecting hole 7, then the power supply is connected with the heater body 1, then the multiple groups of U-shaped heating pipes 8 are heated through the heater body 1, the liquid medium in the liquid tank is heated by the heating pipe 8, the boiled liquid medium can be prevented from splashing out of the liquid tank after heating, the electric heater can be conveniently maintained and overhauled by conveniently disassembling the cover 4 through the fixing rod 5, in addition, the explosion-proof mechanism 10 is arranged, so that when the electric heater explodes due to failure, the heater fragments generated during explosion can be blocked from splashing outward through the explosion-proof cover 1002 in the explosion-proof mechanism 10, the personal safety is guaranteed, the loss is reduced, and the heating efficiency of the liquid is not affected through the leakage hole design on the explosion-proof cover 1002 during use, so the operation process of the flange type explosion-proof electric heater is completed.

[0021] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange type explosion-proof electric heater characterized by, The application relates to a heater body (1) and an explosion-proof mechanism (10), an anticorrosion coating (2) is coated on the outer wall of the heater body (1), connecting seats (3) are arranged at both ends of the outer wall of the heater body (1), a machine cover (4) is arranged at the top end of the heater body (1), a fixing rod (5) is arranged on the inner wall of the machine cover (4), a connecting flange (6) is welded on the outer side of the bottom end of the heater body (1), a connecting hole (7) is formed in the inner wall of the connecting flange (6), a heating pipe (8) is arranged on the bottom end of the heater body (1), a pipe clamp (9) is arranged on the outer wall of the heating pipe (8), the explosion-proof mechanism (10) is arranged on the bottom end of the connecting flange (6), the explosion-proof mechanism (10) comprises a fixing ring (1001), an explosion-proof cover (1002) and a limiting rod (1003), the fixing ring (1001) is arranged on the bottom end of the connecting flange (6), the explosion-proof cover (1002) is welded on the bottom end of the fixing ring (1001), and the limiting rod (1003) is arranged on the top end of the fixing ring (1001) on both sides.

2. The flange-mounted explosion-proof electric heater according to claim 1, characterized in that: The coating material of the anticorrosion coating (2) is epoxy resin paint.

3. The flange-mounted explosion-proof electric heater according to claim 1, characterized in that: The machine cover (4) is threadedly connected with the heater body (1) through the fixing rod (5), and the outer wall of the fixing rod (5) and the inner wall of the heater body (1) are both provided in a threaded mode.

4. The flange-mounted explosion-proof electric heater according to claim 1, characterized in that: The connecting holes (7) are equidistantly distributed around the surface of the connecting flange (6), and the hole diameters of the connecting holes (7) are the same.

5. The flange-mounted explosion-proof electric heater according to claim 1, characterized in that: The explosion-proof cover (1002) is threadedly connected with the connecting flange (6) through the limiting rod (1003), and the outer wall of the limiting rod (1003) and the inner wall of the connecting flange (6) are both provided in a threaded mode.

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